At the start of each Grand Prix event, players are introduced to a series of racing challenges to complete and earn Nitro Points**. As you collect Nitro Points, you start filling up your Nitro Gauge, unlocking a series of rewards including special karts, character skins, and customization items.
You can also use Wumpa Coins in the Pit Stop — which are earned in Grand Prix events as well as Adventure Mode, Local Arcade and Multiplayer Mode — to unlock even more new characters, karts, skins, and kart customization items**! A new set of items is introduced to the Pit Stop at the beginning of each Grand Prix.
Finally, each Grand Prix comes with a bonus track that will be playable online or offline from that point on, as long as the player has downloaded the game update that kicks off the Grand Prix.